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Tuesday brought citizens of this heavily contaminated metropolis found themselves breathing severely hazardous air that was classified as the "alarming" category.

Alarming Air Quality Measurements

Multiple areas of Delhi recorded an pollution measurement exceeding 500, which equals ten times the recommended level established by the global health authority.

In some locations, levels of PM2.5 and PM10 hit highs of 1,800, amounting to 15-20x exceeding acceptable standards.

Pyrotechnics Prohibition and Recent Changes

Since 2020, authorities had enforced a complete ban on the sale and use of firecrackers during Diwali due to their major role to the dangerous smog that covers the city as the cold season sets in.

However recently, the current regional administration petitioned the supreme court to seek a modification of the ban.

Officials advocated for allowing "green crackers" – previously questioned by environmental experts as being only roughly 30 percent less polluting – as a balance between "tradition and public health".

Legal Ruling and Reality

To the disappointment of public health and environmental activists, judges approved the appeal, specifying that environmentally conscious fireworks could be ignited during specific periods throughout the festival.

During the celebrations, there was widespread disregard of the designated hours across the metropolis, with insufficient enforcement regarding whether the pyrotechnics being used were actually the more environmentally friendly variety.

Numerous monitoring devices throughout Delhi recorded pollution reaching highest levels around midnight to extremely hazardous readings seen during Diwali in at least the past three years.

Cross-Border Implications

Extensive ignition of fireworks during the festival also initiated a blame game with adjacent Pakistan, with authorities in Pakistan's Punjab province partially attributing declining atmospheric conditions in the city of Lahore on hazardous particles traveling from neighboring India following the festivities.

Long-Standing Environmental Issue

The dangerously high readings of pollution in Delhi have persisted as a major issue for over a decade and a half, with the problem continuing to worsen.

Near Diwali, the amount of dangerous particulate matter in the air has been documented to spike to 70% higher the most severe records ever measured in the Chinese city, which was previously viewed as the planet's dirtiest metropolis.

Diverse Contamination Factors

This crisis in the capital is resulting from a convergence of multiple factors including transportation pollution, dust, development work, waste incineration and haze from farm burning in adjacent areas of Punjab and Haryana.

Within these states, farmers routinely burn crop residue to clear them quickly, generating hazardous pollution that remains stagnant over the metropolitan area as colder air arrives.

Public Health and Economic Impact

Both financial and medical toll on the nearly 33 million residents residing in the capital region is substantial, according to numerous research.

The contaminated air leads to increased incidence of nervous system, cardiovascular and lung disorders, and can potentially cause malignancies.

Air quality crisis is estimated to be responsible for ten thousand early mortalities per year in the capital.